Patents by Inventor Ka Man Cheang

Ka Man Cheang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • SYSTEM AND METHOD FOR POSITIONING THREE-DIMENSIONAL BRACKETS ON TEETH
    Publication number: 20230338118
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Application
    Filed: December 20, 2022
    Publication date: October 26, 2023
    Inventor: Ka Man CHEANG
  • System and method for positioning three-dimensional brackets on teeth
    Patent number: 11583366
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Grant
    Filed: March 9, 2020
    Date of Patent: February 21, 2023
    Assignee: Align Technology, Inc.
    Inventor: Ka Man Cheang
  • SYSTEM AND METHOD FOR POSITIONING THREE-DIMENSIONAL BRACKETS ON TEETH
    Publication number: 20200214802
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Application
    Filed: March 9, 2020
    Publication date: July 9, 2020
    Inventor: Ka Man Cheang
  • System and method for positioning three-dimensional brackets on teeth
    Patent number: 10582986
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Grant
    Filed: May 22, 2018
    Date of Patent: March 10, 2020
    Assignee: ALIGN TECHNOLOGY, INC.
    Inventor: Ka Man Cheang
  • SYSTEM AND METHOD FOR POSITIONING THREE-DIMENSIONAL BRACKETS ON TEETH
    Publication number: 20180368942
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Application
    Filed: May 22, 2018
    Publication date: December 27, 2018
    Inventor: Ka Man Cheang
  • System and method for positioning three-dimensional brackets on teeth
    Patent number: 10022204
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Grant
    Filed: December 14, 2017
    Date of Patent: July 17, 2018
    Assignee: Align Technology, Inc.
    Inventor: Ka Man Cheang
  • SYSTEM AND METHOD FOR POSITIONING THREE-DIMENSIONAL BRACKETS ON TEETH
    Publication number: 20180104022
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Application
    Filed: December 14, 2017
    Publication date: April 19, 2018
    Inventor: Ka Man Cheang
  • System and method for positioning three-dimensional brackets on teeth
    Patent number: 9844420
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: December 19, 2017
    Assignee: Align Technology, Inc.
    Inventor: Ka Man Cheang
  • SYSTEM AND METHOD FOR POSITIONING THREE-DIMENSIONAL BRACKETS ON TEETH
    Publication number: 20160120618
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Application
    Filed: January 8, 2016
    Publication date: May 5, 2016
    Inventor: Ka Man Cheang
  • System and method for positioning three-dimensional brackets on teeth
    Patent number: 9326831
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Grant
    Filed: October 20, 2006
    Date of Patent: May 3, 2016
    Assignee: ALIGN TECHNOLOGY, INC.
    Inventor: Ka Man Cheang
  • System and method for detecting deviations during the course of an orthodontic treatment to gradually reposition teeth
    Patent number: 8636510
    Abstract: Method and system for detecting and correcting deviation during an orthodontic treatment plan is provided. The method includes the steps of receiving an un-segmented current teeth image representing a patient's teeth after an orthodontic treatment plan has begun and before the plan ends for the patient; matching a previously segmented teeth model with the current teeth image; and generating at least one corrective stage to define an intermediate tooth arrangement, wherein the at least one corrective stage repositions a digital teeth image so that a prescribed tooth arrangement of the previously segmented teeth model can be used.
    Type: Grant
    Filed: November 10, 2011
    Date of Patent: January 28, 2014
    Assignee: Align Technology, Inc.
    Inventors: Ian Kitching, Ka Man Cheang
  • SYSTEM AND METHOD FOR POSITIONING THREE-DIMENSIONAL BRACKETS ON TEETH
    Publication number: 20080096152
    Abstract: System and methods for positioning 3D virtual brackets on teeth for the precise positioning of conventional brackets and wire. Various reference features may be calculated for the teeth and used to calculate a position for the virtual bracket. Reference features that are calculated include curve of Spee, Andrew's plane, and a facial axis of the clinical crown for the teeth.
    Type: Application
    Filed: October 20, 2006
    Publication date: April 24, 2008
    Applicant: ALIGN TECHNOLOGY, INC.
    Inventor: Ka Man Cheang
  • Digitally modeling the deformation of gingival tissue during orthodontic treatment
    Patent number: 6948931
    Abstract: A computer obtains a digital model of a patient's dentition, including a dental model representing the patient's teeth at a set of initial positions and a gingival model representing gum tissue surrounding the teeth. The computer then derives from the digital model an expected deformation of the gum tissue as the teeth move from the initial positions to another set of positions.
    Type: Grant
    Filed: October 22, 2003
    Date of Patent: September 27, 2005
    Assignee: Align Technology, Inc.
    Inventors: Muhammad Chishti, Huafeng Wen, Elena Pavlovskaia, Ka Man Cheang
  • Digitally modeling the deformation of gingival tissue during orthodontic treatment
    Publication number: 20040081938
    Abstract: A computer obtains a digital model of a patient's dentition, including a dental model representing the patient's teeth at a set of initial positions and a gingival model representing gum tissue surrounding the teeth. The computer then derives from the digital model an expected deformation of the gum tissue as the teeth move from the initial positions to another set of positions.
    Type: Application
    Filed: October 22, 2003
    Publication date: April 29, 2004
    Applicant: Align Technology, Inc.
    Inventors: Muhammad Chishti, Huafeng Wen, Elena Pavlovskaia, Ka Man Cheang
  • Digitally modeling the deformation of gingival tissue during orthodontic treatment
    Patent number: 6685470
    Abstract: A computer obtains a digital model of a patient's dentition, including a dental model representing the patient's teeth at a set of initial positions and a gingival model representing gum tissue surrounding the teeth. The computer then derives from the digital model an expected deformation of the gum tissue as the teeth move from the initial positions to another set of positions.
    Type: Grant
    Filed: October 24, 2002
    Date of Patent: February 3, 2004
    Assignee: Align Technology, Inc.
    Inventors: Muhammad Chishti, Huafeng Wen, Elena Pavlovskaia, Ka Man Cheang
  • Digitally modeling the deformation of gingival tissue during orthodontic treatment
    Publication number: 20030039941
    Abstract: A computer obtains a digital model of a patient's dentition, including a dental model representing the patient's teeth at a set of initial positions and a gingival model representing gum tissue surrounding the teeth. The computer then derives from the digital model an expected deformation of the gum tissue as the teeth move from the initial positions to another set of positions.
    Type: Application
    Filed: October 24, 2002
    Publication date: February 27, 2003
    Applicant: Align Technology, Inc.
    Inventors: Muhammad Chishti, Huafeng Wen, Elena Pavlovskaia, Ka Man Cheang
  • Digitally modeling the deformation of gingival
    Patent number: 6514074
    Abstract: A computer obtains a digital model of a patient's dentition, including a dental model representing the patient's teeth at a set of initial positions and a gingival model representing gum tissue surrounding the teeth. The computer then derives from the digital model an expected deformation of the gum tissue as the teeth move from the initial positions to another set of positions.
    Type: Grant
    Filed: May 14, 1999
    Date of Patent: February 4, 2003
    Assignee: Align Technology, Inc.
    Inventors: Muhammad Chishti, Huafeng Wen, Elena Pavlovskaia, Ka Man Cheang
  • Systems and methods for removing gingiva from teeth
    Patent number: 6386878
    Abstract: A computer-implemented method separates gingiva from a model of a tooth by defining a cutting surface along the gingiva; and applying the cutting surface to the tooth to separate the gingiva from the tooth.
    Type: Grant
    Filed: August 16, 2000
    Date of Patent: May 14, 2002
    Assignee: Align Technology, Inc.
    Inventors: Elena Pavlovskaia, Venkata S. Sarva, Ka Man Cheang